/*
 * Copyright 2010-2025 Hyland Software, Inc. and its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.activiti.validation.validator;

import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.io.IOException;
import java.io.InputStream;
import java.util.Map;
import org.activiti.validation.ValidationError;
import org.apache.commons.text.StringSubstitutor;

public class ValidationErrorDecorator {

    public static final String PARAM_PREFIX = "{{";
    public static final String PARAM_SUFFIX = "}}";

    private Map<String, ErrorMessageDefinition> errorMessages;

    public ValidationErrorDecorator() {
        this.init();
    }

    public void init() {
        try {
            ObjectMapper objectMapper = new ObjectMapper();
            TypeReference<Map<String, ErrorMessageDefinition>> typeReference = new TypeReference<>() {};
            InputStream inputStream = getClass().getResourceAsStream("/process-validation-messages.json");
            this.errorMessages = objectMapper.readValue(inputStream, typeReference);
        } catch (IOException e) {
            throw new RuntimeException("Failed to load error messages", e);
        }
    }

    public void decorate(ValidationError error) {
        error.setProblem(resolveMessage(errorMessages.get(error.getKey()).getProblem(), error.getParams()));
        error.setDefaultDescription(
            resolveMessage(errorMessages.get(error.getKey()).getDescription(), error.getParams())
        );
    }

    public String resolveMessage(String message, Map<String, String> params) {
        StringSubstitutor sub = new StringSubstitutor(params, PARAM_PREFIX, PARAM_SUFFIX);
        return sub.replace(message);
    }
}
